Based on non-isothermal experimental results for eight Chinese biomass spec
ies, a new kinetic model, named as the "pseudo bi-component separate-stage
model (PBSM)", is developed in this note to describe the mass loss behavior
of biomass thermal decomposition. This model gains an advantage over the c
ommonly used "pseudo single-component overall model (PSOM)" and "pseudo mul
ti-component overall model (PMOM)". By means of integral analysis it is ind
icated that the new model is suitable to describe the mass loss kinetics of
wood and leaf samples under relatively low heating rates (e.g. 10 degreesC
/min, used in this work).